| Acronym | Meaning |
 | PN | Pseudo Noise |
| TER | Time Estimating Relationship |
| RT | Real Time (R/T Preferred) |
| RVDT | Rotary Variable Differential Transformer |
| TGO | Time To Go |
| QSM | Quarter Scale Model |
| SL | Shelf Life |
| MAT | Meteorological Atmospheric Turbulence |
| FED | Flight Events Demonstration |
| LSSRC | Life Sciences Shuttle Research Centrifuge |
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